Chain



FIG. 1 is a front view of a chain according to my new design;

FIG. 2 is a back view of the chain shown in FIG. 1;

FIG. 3 is a bottom view of the chain shown in FIG. 1;

FIG. 4 is a top view of the chain shown in FIG. 1;

FIG. 5 is a left side view of the chain shown in FIG. 1;

FIG. 6 is a right side view of the chain shown in FIG. 1; and,

FIG. 7 is a top frontal perspective view of the chain shown in FIG. 1. 

The ornamental design for a chain, as shown and described. 